Pump rig or jack



Dec. 8, 1925.

- 1,564,320 H. CALLAHAN PUMP RIG 0R JACK Filed May 10. 1924 2 Sheets-Sheet 1 I Harold Callahan,

' 9% WWW atfor 1 uz 1924 2 Sheets-Sheet 2 Dec. 8, 1925 H. CALLAHAN PUMP RIG OR JACK Filed May 10 Patented Dec. 8, 1925.

UNITED STATES HAROLD CALLAHAN; 0F

INDEPENDENCE, KANSAS.

PUMP RIG QB JACK.

Application filed May 10, 1924. Serial No. 712,283.

To all whom it may concern: 7

Be it knownthat I, HAROLD CALLAHAN, a citizen of the United States, residing at Independence, in the county of Montgomery and State of Kansas, have invented certain new and useful Improvements in Pump specification.

My invention relates 'to improvements in pumping apparatus, and has particular reference to improvements in pump jacks.

The operation of deep wells, .is 1noreas ing rapidly, owing to the production getting into deeper territory. It is customary, in pumping deep wells, to use the equipment of a standardrig or jack, that has been em- 7 standard rig or jack has not proven wholly.

ployed to drill the well. The use of this satisfactory, since the stroke of the same is too "short to obtain the best results. It has become reco not pump as much fluid in a given time, as a longer and slower stroke. Further, a longer and slower stroke will reduce the whip, with a consequent reduction inbre'akage to the sucker rods and other parts.

An important object of the invention is to. provide means of the above mentioned character, which are adapted to apply u on a standard rig or jack, without rebuil mg the same, or without increasing the power to drivethe equipment.

A further. object of the invention is to provide means for increasing the length of the stroke and decreasing the speed of the same. A further object of the invention is to provide means to counter-weight or balance the weight of the load of the sucker rods and movable parts of the equi ment.

A further object of t e invention is to provide guide means for the suspension element supporting the sucker rods, to prevent oscillation of the connecting parts.

' A further object of the invention is to provide means of the above mentioned character which is simple, strong and inexpensive. Y t A further object of the invention is to provide means of the above mentioned character, in the nature of an' attachment to applied to the standard pump rig or pro 7 Other objects and advantages of the inized that in the pumping ofdeep oil wel s, a short and fast stroke, will" vention will be apparent during the course of the followingdescription.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same, Rigs or Jacks, of which the following is a Figure 1 is a side elevation of apparatu embodying my invention,

Figure 2 is a transverse section taken on line 22 of Figure 1,

Figure 3 is a front end elevationof the suspension means and guide means therefor,

Figure 4 is a transverse section taken on line 44 of Figure 1,

Figure 5 is a detail longitudinal section through one of the segmental guides, and,

Figure 6 is a detail transverse section through the same.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 designates a post or standard, suitably mounted upon a base 11. This post or standard is provided with diagonal braces 12. Arranged above the post 10 is a walking beam 13, suitably pivotally connected, near its center,

with the top of the post 10, as indicated at 14. Arranged to one side of the post 10 are vertical standards 15, carrying at their upper ends a transverse shaft 16, upon which is rigidly mounted a band wheel 17. The shaft 16 carries a crank 18.

The band wheel is driven by a belt 19, en: gagin japulley 20, which may be driven direct y from an engine or motor. If depulley 20 may be driven by a an 011 well, and also employed in pumping the same, by producing a short stroke. 'My invention resides in the prov1s1on of means, in the nature of an attachment, whlch i, s .jlada ted to be applied to or associated with t ese parts, whereby the stroke of the jack may be increased, without the application of additional wer to drive the same. .In'accordance with my invention, I providean extension beam 23, arranged upon the inner end of the walking beam 13, and clamped thereto by U-bolts 24 orthe like. This extension beam projects outwardly besubstantial distance, as shown.

yond the end of the walking beam for a Arranged beneath the walking beam and its extension, is a supplemental walking beam 24', pivotally mounted at its inner end, as shown at 25, with the upper end of a post or standard 26. The extension beam 23 and supplemental walking beam 24 are disposed upon the same side of the post 10, and these elements are arranged in the same vertical plane. Of course the pivot 25 of the supplemental walking beam is spaced from the pivot 14, as shown.

The corresponding outer ends of the walk ing beam extension 23 and the supplemental walking beam 24 are pivotally connected by means of a link 27 ,held beneath plates 28, connected to these parts by bolts 29, as shown.

The numeral 30 designates a pitman, the upper end of which is equipped with a yoke "31, pivoted within a blockl32, secured to the supplemental walking beam 24, near its center, by means of U-bolts 33. The lower end of the pitman is provided with a suitable opening or bearing for the pivotal reception of a pin 34, adapted to be inserted in any one of selected openings 35, formed in the crank 18. The openings are longitudinally spaced upon the crank 18, in order that the length of the stroke of the pitman 30, may be varied, as desired.

The numeral 36 designates a counterweight, formed of concrete or any other suitable material, and slidable u on vertical guides 37. This counter-weight is connected with a flexible suspension element 38, such as a steel cable, extending upwardly, and

secured to the free end of the walking beam extension 23; The counter-weight is employed to counter balance the weight of the sucker rods, and associated elements. Arranged upon the forward end of the walking beam 13 is a block 39, having a groove formeduponits upper face for receiving a cylindrical rod or cross head 40, having transverse openings for the reception of bolts 41, which pass through parts 39 and 13, as clearly shown in Figure 3. This cylindrical ciioss head, Figure 5, 'is provided with tapered transverse openings 42, for the reception of the upper ends of flexible suspension elements 43, such as steel cables'or the like. These ends are held within the openings by means of babbitting. The flexible cables extend downwardly and are secured in a similar manner within transverse o enings, formed in a lower cross head 44. is lower cross head has a central transverse cylindrical opening 45, ro-

tatably receiving the polish rod 46, having a block 47 clamped thereon. This polish rod is connected with the sucker rods within the tube 47 as is well known.

The flexible elements or cables 3 t a el outer face of segmental guides 49. These segmental guides have their upper ends bent into eyes 50, which receive the ends of the cross head 40, and preferably encircle the openings 42. The lower ends of the segmental guides 49 are provided with eyes 51, receiving a transverse pin 52, provided in its ends with transverse openings to receive cotter pins 53 or the like. A diagonal U- shaped brace 54 is provided, having eyes at its ends to receive the pin 52, and the transverse portion of this brace is held within a bracket 55, which may be longitudinally adjustably mounted upon the lower surface of the Walking beam 13, by any suitable means.

In the operation of the apparatus, it wil; be seen that the rotation of the crank 18 reci rocates the pitman 30, which in turn osci lates the supplemental walking beam 23. This supplemental walking beam will transmit this oscillation to the main walking beam 13, but the main walking beam will be moved through a longer stroke and at a slower speed, as is obvious.

In view of the foregoing description, it will be seen that I can take the ordinary rig or pump jack, and apply my improvements thereto, whereby the stroke .of the walking beam may be prolonged and rendered slower, without the increase of power to the rig. I also contemplate building the complete ap aratus, embodying my invention, in whic event the main walking beam would have one end thereof longer than the other, and hence the invention is not necessarily restricted to thelidea of the same being embodied in an attachment.

It is to be understood that the form of my invention herewith shown and described is' to be taken as a preferred embodiment of the same, and that various changes in the shape, size, and arrangement of parts, may be resorted to, without departing from the spirit of my invention, or the scope of the subjoined claims.

Having thus described my invention, 1-

claim:

1. .A standard pump or jack, comprising an upstanding post, a walking beam pivoted near its center upon the post, pumping means connected with one end of the walking beam, a bearing arranged upon one side of the post and in general vertical alinement with the opposite end of the walking beam, a transverse shaft held within the bearing, a crank carried by the shaft, and means to drive the shaft; in combination with an extension beam secured to the end of the walking beam above said shaft and serving to increase the length of one arm of the walking beam, a standard disposed between said shaft and said post, a supplemental walking beam having its inner ioo beam between its ends and connected with the crank.

2. A standard ump or jack comprising a post, a walking eam pivoted near its center to the post, pum means connected with one end of the walking beam, bearing means arranged upon one side of the post and in general vertical alinement with the o posite end of the walking beam, a shaft hel .within the bearin means, a crank carried by the shaft, an means to drive the shaft; in combination with an extension beam secured to the free end of the walkin 'beam and projecting outwardly beyond t e same to Increase the length of one arm of the walking, beam, a support arranged between the bearing means and post, a supplemental walking beam having'its end pivotally connected with the support and its outer end projecting outwardly toward the free end of the extension beam, and terminating inwardl of the same, a link pivotally connect with the 1 outer end of the supplemental walking beam and with the outer end portion of the extension beam, a pitman pivotally connected with the supplementa walking beam adjacent to its center and pivotally connected with said crank, a substantially vertical guide arranged beneath and inigeneral vertical alinement with the free end of the extension beam, a weight slidable upon the guide, and a cable connecting the weight and the free end ofthe extension beam and arran ed outwardl of the free end of the supp emental wal 'ng' beam.

In testimony whereof I aflix my signature.

HAROLD CALLAHAN. 

